People are fulfilled only to the extent that they create their world (which is a human world), and create it with their transforming labor. The fulfillment of humankind as human beings lies, then, in the fulfillment of the world. If for a person to be in the world of work is to be totally dependent, insecure, and permanently threatened—if their work does not belong to them—the person cannot be fulfilled. Work that is not free ceases to be a fulfilling pursuit and becomes an effective means of dehumanization.
Chapter 4, "Divide and Rule - Pedagogia do oprimido (Pedagogy of the Oppressed) (1968, English trans. 1970)